2026-10-02T10:17:02Zhttps://docta.ucm.es/rest/oai/request
oai:docta.ucm.es:20.500.14352/714322024-07-22T16:55:43Zcom_20.500.14352_14col_20.500.14352_15
Docta Complutense author Herrero Fernández, María Josefa author Pérez Fortes, Ana Patricia author Escavy Fernández, José Ignacio author Insua Arévalo, Juan Miguel author Horra Del Barco, Raúl De La author López Acevedo, Francisco Javier author Trigos Luque, Laura 2023-06-22T10:42:05Z 2023-06-22T10:42:05Z 2022-06 0098-3004 10.1016/j.cageo.2022.105121 https://hdl.handle.net/20.500.14352/71432 https://doi.org/10.1016/j.cageo.2022.105121 This work develops a rock mass characterization of a limestone quarry in northern Spain based on a 3D model obtained by using photographs taken from an unmanned aerial vehicle (UAV) flight and structure-from-motion algorithms. This methodology permits to obtain photogrammetric information in a rapid and low-cost way. Geological planar facets (stratification, faults) are related to the tectonic history of a geological formation and permit assessing slope stability. The spatial orientation of planar features is usually measured with a compass and clinometer, which requires experience and knowledge, it is space limited, and sometimes hazardous. Geological 3D models can mitigate these limitations. A 3D point cloud generated from a series of images obtained using an UAV is included in the open-access applications DSE and FACET, which serve to determine the main discontinuity planes within a limestone quarry. Comparison of the results from software analyses with data hand-measured directly in the field reveals the effectiveness of the use of UAV to develop a virtual outcrop model that permits to obtain accurate measurements. The resultant quarry 3D model has been included in Sketchfab, an open access platform that permits easy and quick access and availability for a wide audience. This study shows that the use of UAV combined with structure-from-motion algorithms is of great interest for geosciences as well as other related disciplines such as mining or civil engineering, and can facilitate decision-making for policy makers and authorities. In addition, it is a technique of great use to develop rock mass characterization in a low-cost, rapid, and easy way, and permits to reach areas with difficult accessibility. This way, this methodology can also be very useful for geosciences teaching purposes, as a complement to traditional field lectures, or to develop virtual field trips and laboratories. eng Atribución 3.0 España 3D model generated from UAV photogrammetry and semi-automated rock mass characterization journal article URL https://docta.ucm.es/bitstreams/9b4e0864-e36a-47d2-aa27-703622f1f0ca/download File MD5 d69d15c7a7dc2fe44aea5e4f7ca80053 5941760 application/pdf Herreroetal2022.pdf URL https://docta.ucm.es/bitstreams/34cdd85e-e6f2-4fd7-b098-a5d2e4fcb2f9/download File MD5 53ef1289c388d50d2b62ea96ceb89b45 66530 text/plain Herreroetal2022.pdf.txt